Portable stove



Oct. 19, 1943. ROBINSON 2,331,931

PORTABLE STOVE Filed July 15, 1942 IN V EN TOR.

Patented Oct. 19, 19 13 PORTABLE s'rovn Bestor Robinson; United States Army,

- -akland, Calif.

Application a y is, 1942, Serial No. 450,781

(Granted -under theact of March 3, 1883, as

amended April. 30, 1928; 370-0. G. 757) 4 Qlaims.

The invention described herein, ii patented, may be manufactured and used by or for the Government for governmental purposes, without the payment to meof any royalty, thereon.

The present invention relates 'toportable stoves, and is particularl concerned with miniature types of folding stoves such as are ordinarily used by sin or parachute troops, and carried as a part or issued military equipment. In this connec, tion it may be pointed out that troops operating in mountains or cold climate regions must 'depend on miniature stoves of this general'class for preparation of meals, et cetera, and since troops operating in cold climate regions "do not ordinarily have any mechanized means of transportation, the stoves must necessarily be carried as a part of the individual packs of the soldiers. these circumstances, it is a first essential of equipment of this type that it be designed to occupy a minimum amount of space when packed and to be of relatively light Weight.

It is, therefore, the principal object of th present inventionto provide a collapsibleminiature stove including a liquid fuel reservoir and burner in combination with a novel andimproved stove frame including stove feet and means for supporting a cooking utensil above the stove burner.

A further object of the invention is a provision of a novel folding stove structure wherein methods of manufacture and capable of easy manipulation in use.

A further object of the invention resides in the provision of a collapsible stove frame comprising a plurality of pivoted wire supports, each including an-extensible foot and a utensil support having a common pivotal mounting on the fuel reservoir of the stove.

n further object of the invention is the provision of a collapsible stove "assembly including extensible feet having a relatively wide fiat web type supporting surface of sufficient area to provide firm support for the stove in snow or other non-solid substances.

Referring now more particularly to the draw- Under burner tube 15, which includes a fuel shut ofi' burner cup l8, and also to provide supporting'feetfor the stove, to in'creas'e the effective area. of support in order to 'preventitipping and :to provide a reasonably solid means of support on soft I surfaces such as loosely packed snow. The utensil. supporting frame comprises three identical-main.

ent specification,

- miniature stove constructed in 'ac'cordan'ce'wit ing attached to'and forming a part of the pres-.'

Fig; 1 is a side elevational View or a collapsible the teachings ofthe present invention. Fig. 2 is a plan view'thereotand I Fig. 8 is a fragmentaltside elevational view showing the stove feet and -utensi-l1 supporting- 1 frame in nested position with respect to the-stove reservoir andburn'er. v H

' The stove comprises a-fuel reservoir-Ill having its lower end closed'by'reservoir bottom ll united to the reservoir lll'by an overlapping marginal band 12. There'servoir H is also provided with a filler opening normally covered by the can, and a small air pump 14 to buildup air pressure in the reservoir for purposes well understood in the art "to which the present invention related A.

far as they area partof acombinationwith' the collapsible leg and utensil supporting flame to be hereinafter described. I

It will-be understood, or course, that the purpose and function of the supporting frame islto provide a means forsupzport'ing a cooking utensil;

above and in proper space relationship 'witnthe' supportsil, each having a vertical portion. 22

securedxin pivotal relationship with a sheet metal bracket 23 soldered or otnerwise'secure'd to the band 12 of the fuel reservoir.

the lower end ,of the bracket into alegextension 26 soldered to its upwardside; The disk ii increases the area and supportin surface of the. leg-so that the stove may be supportedfin snow without sinking deeply below the surface. The upper end of the support '2l consists of a .risera portion 2-! extending upwardly and ,angularlyi outwardly to a point slightly above the top of i the burner cup IS. The upper end of the riser is provided with a loop 28, which interlocks with Thelcwerl end of the support .-l-lrextends outwardly from.

cup l8, and each of the ,rails isprovided with a,

tip portion bent downwardly to engage and extend through punched openings in the marginal flange of the burner cup l8,

The operative position of the collapsible utensil supporting frame is illustrated in Figs. 1 and-2 of the drawing. When the several parts of the de-;

vice are in this position, the engagement of the tips 32 of the top rails 30 with the burner cup I8 will maintain the risers 21 of the supporting brackets 2| in outwardly extended position, so that the legs and feet of the stove'will be spread apart to provide the greatest stability for the stove, and, of course, to provide a suitable support fora cooking utensil above the stove burner.

When the stove .is not in use, the supporting assembly iscollapsed by lifting the links .30 upwardly to disengage the tips 32 from the burner cup and then rotating each of the supports 2!, in the bearing bracket 23 to the position shown in Fig. 3. In thispo'sition, the feet 25 nest closely against the lower surface of the bottom of the fuel reservoir and the risers 2! extend diagonally inwardly against the burner cup IS. The links remain secured to the upper ends of the risers and will hang downwardlytherefrom, as shown in Fig. 3, so that the entire; utensil supporting assembly is clustered compactly around burner tube 15.

From the foregoing it will be apparent that the presentinvention provides a utensil supporting assembly and a miniature stove that combines the advantages of an; extremely simple, cheap,

and rugged structure, with the obvious advan;

tages of a device of extremely light Weight that may be easily manipulated in setting'up or collapsing, and'which is characterized by a complete structural assembly including no loose parts that,

may become mislaid or require retaining chains or similar devices to prevent loss. 1 It will be also seen that the device of the present disclosure is,

advantageous by reason of its unusual simplicity andby reason of the fact that it is formed entirely of bent wire, so that it riquires no expensive dies or forming tools for the production of stoves in quantities.

The drawing of the present application illus-.

trates the detailsof a. present preferred embodiment of the invention that is believed to best typify the teachings of this disclosure; but it is believed that the invention is-capable of some alterations and modifications without departing from the inventive spirit, and it isaccordingly requested that the scope of. the inventive thought beregarded as limited only by the scope of the language of the appended claims.

"Having thus described my invention, what I claim as new and desire to secure by Letters Patent is:

1. In a portable stove, a fuel'reservoir and a burner in combination with a collapsible supportingstructurecomprising a plurality of identical wire supporting brackets, each pivotally connected to the stove reservoir at separate points circumferentially spaced about the reservoir; each tained in assembled position and provide a support for a utensil above the burner, and so that when the tips of the rails are disengaged the sup- 1 porting brackets may be pivoted into close Y clustered relationship around the stove burner.

- 2." In a portable stove, a fuel reservoir and a burner incombination with a collapsible supporting structure comprising a plurality of identical Wire supporting brackets each pivotally connected to thejstove-reservoir at separate points circumferentially spacedabout the reservoir; each of said supporting brackets including a riser portion.

above the "pivoted portion, said riser extending upwardly and diagonally outwardly and terminating in a top loop, a pairoj top rails each having loops interconnecting with the top loop of the riser, and each including portions adapted to engage the stove burner;'the arrangement being such, that when, the rails are engaged with the burner'the rails' 'an'd supporting brackets will be maintained in, assembledposition and provide a support for a utensil above the burner.

3. In a portable stove, a fueTreserVoir and a burner in combination with acollapsible supporting structure comprising a plurality of identical wire supporting brackets, each piyotally connected to the stove reservoir at separate points circumferentially spaced about the/reservoir; each of said supporting brackets including a foot portion extending outwardly from the pivoted portion and terminating in a wide loop closed by a thin diskto provideaweb of relatively large area and remote from the reservoir of;the stove.

4. In ap'ortablestove, a fuel'reservoir and a burner in combination with a collapsible supporting structure comprising a plurality, of identical wire supporting brackets, each pivotally, connected to the stove reservoir at separate points circumferentially spaced about the reservoir said pivotshaving their axes;vertical and parallel to each I other; each of said supporting brackets including a ,footportion extending outwardly from the lowerend of the pivoted portion and terminating in a wide loop closed by a thin disk to provide a web of relatively largeareaand remote from the reservoirof the stove; each-of said supporting brackets including ,a riser portion above the pivoted portion, said riserextending upwardly top loop, a pair of top rails each having loops interconnecting with the top loop of the riser, and

each including tip portions at right angles tolthe rails adaptedto engage the upper surface ofjthe stove burner; the arrangement being such that r when saidtip portions of the rails are engaged the rails and supporting'brackets willgbe main,- tained in assembled position and provide a support for a utensil above theburner, and so that when the tips of the rails are disengaged the'sup .porting' brackets mayjfbe pivoted j' into close clustered relationship around; the stov'eburner.

BEs'roR- ROBINSON. 

